Chicago Bears running back Jeremy Langford is expected to miss four to six weeks with a sprained ankle, a source told ESPN's Adam Schefter.
Bears coach John Fox confirmed earlier Monday that Langford had a sprained ankle in the Bears' 31-17 loss to the Dallas Cowboys, but did not provide a timetable for his return.
Langford wore a walking boot in the AT&T Stadium visitors' locker room after the game.
Rookie fifth-round pick Jordan Howard replaced Langford and rushed for 45 yards on nine carries, plus he caught four balls for 47 yards.